Pendent switch.



H.- G. WIRT.

PENDENT SWITCH. APPLIQA'I'ION'IILED AUG. 3, 190a.

Witnesses Inventor.

MW M

' may PATENTED JAN. 1, 1907.

- the following is a specification.

' left-hand elevation of the insulating-base and the parts carried thereby, and Fig. '4 is ectady, county of Schenectady, State of New UNITED STATES ATENT oEEIoE.

'HERBERT'o. WIRT, or SCHENEOTADY,

7 NEW YORK, ASSIGNOR TO GENERAL ELECTRIC COMPANY, A CORPORATION or NEW, YORK.

IEENDENT SWITCH.

Patented Jan; 1, 1907.

Application filed August 3, 1903. Serial No. 167,956.

To all whom it may concern:

Be it known that 1,.HERBERT C. WIET, a I citizen of the United States, residing at Schen- York, have invented certain new and useful Improvements in Pendent Switches, of which The present invention relates'to' electric cut-out devices, and more particularly to the class of cut outs known as pendent switches, and has for its object to provide a compact and highly-efficient switch of this class which shall consist of few and simple parts and be of low cost of manufacture.

The invention will be readily understood. by reference to the following description and the accompanying drawings, forming apart of this specification, in which- Figure 1 is a side elevation of a complete pendent switch embodying my invention. Fig. 2' is an axial section of the shell and insulating parts, with the switch mechanism proper shown in side elevation. Fig. 3 is a a plan view of the same.

The switch'comprises a two-part inclosing shell A of nearly spherical shape provided with an insulating-lining and a bushed aperture, through which pass the circuit-conductors in the usual manner, an insulating singlepiece base B, supported within theshell and provided with inding-posts to which the endsof the conductors may be attached, and

a rotary switch mechanism C whereby the circuit may be opened and closed between the respective binding-posts. The lower cupshaped section of the shell A is made 'of sheet metal, with a spherically-shaped bottom part 1 joining a cylindrical side part 2,having in its upper edge small bayonet-slots 3 and a larger slot 4 for the switch-shaft to pass through. The upper section is also made of sheet metal, with a spherically-shaped upper, part 5 joining 'a cylindrical side part 6 of less width than the corresponding part 2 of the lower section and havinga slightly larger diameter, whereby it is adapted to" telescope therewith. The cylindrical side part 6 is provided with Screw-holesfor' the reception of the screws 7, which engage the "bayonet-slots 3 of the'lower sectinn" and recesses in the base B, whereby gthe several is journaled.

' they may parts may be locked in fixed 'relation. The

spherical upper part 5 hasan axial aperture 8, in which is secured a metallic sleeve 9', having its inner surface screw-threaded for the reception of an insulating-bush 10, having an notches 15 for the passage of the branch con:

ductors and two recesses 16 for engagement with the inner ends of the screws 7. The outer ends of the projections12 and 13 are surfaced in a plane parallel to the surface of the disk 11, and extending longitudinally throu h each projection is a screw-hole.

In t e channel 14, between the projections 12 and 13, is located a yoke-shaped bracket 17, which is secured therein by a screw 18 passing axially through the disk 11 and engaging a tapped hole in the bracket 17. The bracket 17 is provided with a binding-post 19, a flat contact-sprim 20, and bearin s in both of its arms, in whic the switch-shaft 21 To the outer ends of the projections 12 and 13 is secured a C-shaped metallic contact 22 by means of screws 23 extending through the base B and engaging tapped holes in the contact. Thecontact 22 bridges the space between the projections 12 and 13 and is provided atone edge with a bent arm 24, having a binding-post 25 thereon; The switch-shaft 21 is provided at its outer end with an insulating thumb-piece 26 and at the other end with an oblong switch-block 27, adaptedwhen turned in one position to engage and make electrical connection between thecontact spring 20 and the C-shaped contact 22 and when turned in another position I break the circuit between said parts.

I dounot desire to be restricted to the particular construction. or form of parts shown and described herein, for it is apparent that bechanged and modified without departing from my invention. I v

What claim as new, and desire to secure by Letters Patent of the United States, is

1. In an electric switch, the combination of an insulating-base comprising a body part and two integral projections from one face thereof, a stationary metallic contact secured to 'said base between said, projections and provided with a binding-post, an integrallyconnected binding-post and metallic contact spanning the space between said projections and secured to the outer ends thereof, and a rotary switch block and actuating shaft therefor journaled between said projections and'adapted to electrically connect said stationary contacts.

2. In an electric switch, the combination of an insulating-base comprising a circular body part and two integral projections from one face thereof, a stationary metallic contact secured to said base between said proj ections and provided with a binding-post, a C-shaped metallic contact having thereon an integral binding-post bent up at right angles and secured to the outer ends of said projections'. across the space between them, a rotary switch-block adapted to engage said stablock mounted upon said shaft and adapted to engage said stationary contacts.

In witness whereof I have hereunto set my hand this 1st day of August, 1903.

HERBERT C. WTR'I.

between said projections. 

